Refine your search:     
Report No.
 - 
Search Results: Records 1-5 displayed on this page of 5
  • 1

Presentation/Publication Type

Initialising ...

Refine

Journal/Book Title

Initialising ...

Meeting title

Initialising ...

First Author

Initialising ...

Keyword

Initialising ...

Language

Initialising ...

Publication Year

Initialising ...

Held year of conference

Initialising ...

Save select records

Journal Articles

Development of precise ion beam dosimetry

Kojima, Takuji

Hoshasen Kagaku, 2001(72), p.37 - 40, 2001/08

no abstracts in English

Journal Articles

Biological application in a super-high-resolution microbeam PIXE project

Kamiya, Tomihiro

Radioisotopes, 50(8), p.42 - 48, 2001/08

no abstracts in English

JAEA Reports

All under-water experiment on the acoustic characteristic of high temperature ultrasonic transducers

Nakayama, Oukatsu;

JNC-TN9400 2000-087, 74 Pages, 2000/07

JNC-TN9400-2000-087.pdf:3.25MB

We have been developing an Ultrasound Doppler Velocimetry technique (UDV), in order to apply thermo-hydraulic measurement in sodium. A feasibility study had been conducted to identify development subjects of sensor and signal processing. Thus, high temperature ultrasonic transducers were manufactured to use in water and sodium tests, which will be scheduled to optimize an algorism of signal processing and to improve the characteristic of the transducer. ln this report, we described the results of an experiment on the acoustic characteristic of transducer in water. The results are as follows : (1)The ultrasound beam profile of the transducer relating to the characteristic of velocity profile measurement using scattering ultrasound wave was obtained. The estimation of ultrasound beam profile in liquid and an ultrasound near-field region were introduced from these experimental data, (2)lt was confirmed that the frequency's spectrum of transducers are adequate for the design requirement of flow velocity range. The specifications of a transmitter and receiver for a transducer were identified, such as the amplitude gain for scattered ultrasound signal and the frequency resolution for Doppler sift signal. (3)The spatial resolution of the ultrasound beam was estimated to evaluate the accuracy of now profile measurement on UDV system.

Journal Articles

Experiment for directional detection of current dipoles with a combined system of high T$$_{c}$$ superconducting parallel plates and a magnetometer

; Kishimoto, Maki; Ara, Katsuyuki

MAG-92-234, p.75 - 81, 1992/11

no abstracts in English

Journal Articles

On spatial resolution in measurement of magnetic fields

; Ara, Katsuyuki

MAG-91-159, p.43 - 54, 1991/08

no abstracts in English

5 (Records 1-5 displayed on this page)
  • 1